feat: implement IRA->GSM character set encoding & decoding0.0.10

This adds support for certain characters like @ $ ~ ^

1 files changed, 4 insertions, 0 deletions

diff --git a/src/pdu.h b/src/pdu.h
index 58f88e0..9dfddd4 100644
--- a/src/pdu.h
+++ b/src/pdu.h
@@ -25,6 +25,10 @@ extern char *strptime(const char *s, const char *format, struct tm *tm);
 
 #define PDU_VPF_RELATIVE_2DAYS	0xA8
 
+#define GSM_TABLE_SIZE    128
+extern char strGSMTable[];
+extern char strExtendedTable[];
+
 struct pdu_addr {
 	char addr[PDU_ADDR_SIZE];
 	uint8_t type;